Imagen Astronómica del Día

A esta la llamaria BAILARINA CLASICA DEL UNIVERSO

que bueno me gustaria volarrrrrrrrrrrr:D

The Bubble Nebula

Lizz escribió:
The Bubble Nebula

nadar alli.... mmmmmmmmmmm

yo también quisiera................

muy linda la foto del dia:D

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Bending the Light

This
image of galaxy cluster MACS J1206.2-0847 (or MACS 1206 for short) is
part of a broad survey with NASA's Hubble Space Telescope.

The
distorted shapes in the cluster are distant galaxies from which the
light is bent by the gravitational pull of an invisible material called
dark matter within the cluster of galaxies. This cluster is an early
target in a survey that will allow astronomers to construct the most
detailed dark matter maps of more galaxy clusters than ever before.

These maps are being used to test previous, but surprising, results
that suggest that dark matter is more densely packed inside clusters
than some models predict. This might mean that galaxy cluster assembly
began earlier than commonly thought.

The multi-wavelength
survey, called the Cluster Lensing And Supernova survey with Hubble
(CLASH), probes, with unparalleled precision, the distribution of dark
matter in 25 massive clusters of galaxies. So far, the CLASH team has
completed observations of six of the 25 clusters.

Dark matter
makes up the bulk of the universe's mass, yet it can only be detected by
measuring how its gravity tugs on visible matter and warps space like a
fun-house mirror so that the light from distant objects is distorted.

Galaxy clusters like MACS 1206 are perfect laboratories for studying
dark matter's gravitational effects because they are the most massive
structures in the universe. Because of their heft, the clusters act like
giant cosmic lenses, magnifying, distorting and bending any light that
passes through them — an effect known as gravitational lensing.


MACS 1206 lies 4.5 billion light-years from Earth. Hubble's keen vision
helped CLASH astronomers uncover 47 multiple images of 12 newly
identified faraway galaxies. Finding so many multiple images in a
cluster is a unique capability of Hubble, and the CLASH survey is
optimized to find them. The new observations build on earlier work by
Hubble and ground-based telescopes.

The era when the first
clusters formed is not precisely known, but is estimated to be at least 9
billion years ago and possibly as far back as 12 billion years ago. If
most of the clusters in the CLASH survey are found to have excessively
high accumulations of dark matter in their central cores, then it may
yield new clues to the early stages in the origin of structure in the
universe.

Image Credit: NASA, ESA, M. Postman (STScI), and the CLASH

cual es? no entiendo

G299.2-2.9 is a supernova remnant found about 16,000 light years from Earth in the Milky Way galaxy.



About 16,000 light years from Earth.



X-rays from Chandra X-ray Observatory, along with data from the ROSAT
satellite and an infrared image from the Two Micron All-Sky Survey
(2MASS).



About 114 light years across.



X-rays are gold and the infrared red, green and blue.


In the constellation Musca.

lilian escribió:

Lizz escribió:

Este retrato cósmico lleno de colores muestra gas brillante y nubes de polvo oscuro en IC 1795, una zona de formación estelar en la constelación septentrional Cassiopeia.
También catalogada como NGC 896, los detalles de la nebulosa, en dominante color rojo, se capturaron usando una cámara sensible, y largas exposiciones con datos de filtros de banda estrecha.
Estos filtros transmiten sólo luz H-alpha , la luz roja de los átomos de hidrógeno.
Ionizados por la luz ultravioleta de las energéticas y jóvenes estrellas, los átomos de hidrógeno emiten la característica luz H-alpha porque sus electrones son recapturados y transicionan a estados de energía más bajos.
IC 1795, no lejana en el cielo del famoso Cúmulo Doble de Estrellas de Perseus, se encuentra localizada próxima a IC 1805, la Nebulosa Corazón, como parte de un complejo de regiones de formación estelar que se ubica en el límite de una gran nube molecular.
Situada a unos 6.000 años-luz de distancia, el complejo de formación estelar más grande se desparrama a lo largo del brazo espiral de Perseus de nuestra Galaxia Vía Láctea .
A esa distancia, esta fotografía se extendería unos 70 años-luz a través de I C 1795 .

Lizz!!!!!!!!!! que delicia de imagen!!!!!!!!!!!!!!!!!!!

muy bellas tus fotossssss:D

Lizz escribió:

me matan tus fotos, companhera...